Chapter 15, Problem 86CP

(a)

Interpretation Introduction

Interpretation:If the given reaction is spontaneous should be determined using the activity series in Table 15.3.

  $\text{Cu}\left(\text{s}\right){\text{ + Ni}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Cu}}^{\text{2+}}\left(\text{aq}\right)\text{ + Ni}\left(\text{s}\right)$

Concept Introduction: The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.

(b)

Interpretation Introduction

Interpretation: If the given reaction is spontaneous should be determined using the activity series in Table 15.3.

  $\text{2Cr}\left(\text{s}\right){\text{ + 3Fe}}^{\text{2+}}\left(\text{aq}\right)\to {\text{2Cr}}^{\text{3+}}\left(\text{aq}\right)\text{ + 3Fe}\left(\text{s}\right)$

Concept Introduction:The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.

(c)

Interpretation Introduction

Interpretation: If the given reaction is spontaneous should be determined using the activity series in Table 15.3.

  $\text{Fe}\left(\text{s}\right){\text{ + Mg}}^{\text{2+}}\left(\text{aq}\right)\to {\text{Fe}}^{\text{2+}}\left(\text{aq}\right)\text{ + Mg}\left(\text{s}\right)$

Concept Introduction:The activity series of metals arranged from most active to least reactive:

Li > K> Ba> Ca> Na > Mg > Al > Zn > Cr > Fe > Cd > Ni > Sn > Pb > H> Cu > Ag >Hg > Pt> Au

Most active metals are easily oxidized and readily lose electrons as oxidation is the loss of electrons.